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SN54LS190J

PRESETTABLE BCD/DECADE UP/DOWN COUNTERS PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS

Partnumber Manufacturer Quantity Availability
SN54LS190J 3 In Stock

Description and Introduction

PRESETTABLE BCD/DECADE UP/DOWN COUNTERS PRESETTABLE 4-BIT BINARY UP/DOWN COUNTERS The **SN54LS190J** is a synchronous, reversible up/down counter from Texas Instruments. Here are its key specifications, descriptions, and features:

### **Manufacturer:**  
Texas Instruments  

### **Description:**  
The SN54LS190J is a 4-bit synchronous up/down counter with a decade (BCD) counting sequence. It operates synchronously, meaning all flip-flops are clocked simultaneously.  

### **Key Features:**  
- **Counting Modes:** Up or down (selectable via control input).  
- **Synchronous Operation:** All outputs change simultaneously with the clock pulse.  
- **Load Capability:** Parallel load input allows presetting the counter.  
- **Cascading:** Ripple clock output enables easy expansion for higher-bit counters.  
- **Outputs:** Buffered for improved noise immunity.  
- **Power Supply:** Operates at **5V** (standard TTL levels).  
- **Temperature Range:** **-55°C to +125°C** (military-grade).  

### **Package:**  
- **Ceramic DIP (Dual In-line Package)**  

### **Logic Family:**  
- **LS (Low-Power Schottky)** – Offers reduced power consumption compared to standard TTL.  

### **Applications:**  
- Digital counting systems  
- Frequency dividers  
- Industrial control systems  
- Military and aerospace electronics  

This information is strictly based on the manufacturer's datasheet.

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